The National Intimate Partner and Sexual Violence Survey

Transcription

1 The National Intimate Partner and Sexual Violence Survey 2010 Findings on Victimization by Sexual Orientation National Center for Injury Prevention and Control Division of Violence Prevention

2 The National Intimate Partner and Sexual Violence Survey: 2010 Findings on Victimization by Sexual Orientation is a publication of the National Center for Injury Prevention and Control of the Centers for Disease Control and Prevention Centers for Disease Control and Prevention Thomas R. Frieden, MD, MPH, Director National Center for Injury Prevention and Control Linda C. Degutis, DrPH, MSN, Director Division of Violence Prevention Howard R. Spivak, MD, Director Suggested Citation: Walters, M.L., Chen J., & Breiding, M.J. (2013). The National Intimate Partner and Sexual Violence Survey (NISVS): 2010 Findings on Victimization by Sexual Orientation. Atlanta, GA: National Center for Injury Prevention and Control, Centers for Disease Control and Prevention.

3 The National Intimate Partner and Sexual Violence Survey (NISVS): 2010 Findings on Victimization by Sexual Orientation Mikel L. Walters, Jieru Chen, and Matthew J. Breiding January 2013 National Center for Injury Prevention and Control Centers for Disease Control and Prevention Atlanta, Georgia

4 ii The National Intimate Partner and Sexual Violence Survey 2010 Findings on Victimization by Sexual Orientation Table OF CONTeNTS list of Tables and Figures...iii acknowledgments... iv executive Summary... 1 Key findings...1 background and Methods... 5 What is the National Intimate Partner and Sexual Violence Survey?...5 What does this report include?...6 Methods....6 Sexual Violence Victimization... 9 Lifetime prevalence of sexual violence victimization by any perpetrator by sexual orientation...10 of perpetrators in lifetime reports of sexual violence by sexual orientation...12 Sex of perpetrator in lifetime reports of sexual violence by sexual orientation...13 Age at time of first completed rape victimization by sexual orientation...13 Stalking Victimization Lifetime prevalence of stalking victimization by any perpetrator by sexual orientation...15 Violence by an Intimate Partner Lifetime prevalence of rape, physical violence, and/or stalking victimization by an intimate partner by sexual orientation...18 Lifetime prevalence of sexual violence by an intimate partner by sexual orientation...20 Lifetime prevalence of physical violence victimization by an intimate partner by sexual orientation...21 Lifetime prevalence of psychological aggression by an intimate partner by sexual orientation...23 Lifetime prevalence of control of reproductive or sexual health by an intimate partner by sexual orientation...26 of perpetrators in lifetime reports of violence by an intimate partner by sexual orientation...26 Sex of perpetrator in lifetime reports of rape, physical violence, and/or stalking victimization by an intimate partner by sexual orientation...27 Impact of Intimate Partner Violence Lifetime prevalence of rape, physical violence, and/or stalking victimization with intimate partner violence-related impact by sexual orientation...30 Discussion Limitations...34 Implications for Prevention Ensure access to protection, services, and resources...37 Implement strong data systems for monitoring and evaluation...38 Conclusion...38 References... 41

6 iv The National Intimate Partner and Sexual Violence Survey 2010 Findings on Victimization by Sexual Orientation acknowledgments We would like to acknowledge the following individuals who contributed in many ways to the development and support of this report: Kathleen Basile, Michele Lynberg Black, Faye Floyd, Alida Knuth, Melissa Merrick, Erica Mizelle, Nimesh Patel, Sharon Smith, Mark Stevens, Paula Orlosky Williams, and RTI International.

7 The National Intimate Partner and Sexual Violence Survey 2010 Findings on Victimization by Sexual Orientation 1 executive SUMMaRY Little is known about the national prevalence of sexual violence, stalking, and intimate partner violence among gay, lesbian, and bisexual women and men in the United States. Information at a national level focusing on these types of interpersonal violence based on the sexual orientation of U.S. adults has not been previously available. The National Intimate Partner and Sexual Violence Survey (NISVS) is an ongoing, nationally representative survey that collects information about experiences of sexual violence and stalking by any perpetrator and intimate partner violence among English and/or Spanish-speaking women and men aged 18 years or older in the United States. This report presents information based on respondents self-reported sexual orientation and their lifetime victimization experiences of sexual violence, stalking, and violence by an intimate partner. The findings in this report are for 2010, the first year of NISVS data collection, and are based on complete interviews. Complete interviews were obtained from 16,507 adults (9,086 women and 7,421 men). Prevalence estimates for some types of violence for particular groups were too small to produce reliable estimates and, therefore, are not reported. Key Findings Overall Bisexual women had significantly higher lifetime prevalence of rape and sexual violence other than rape by any perpetrator when compared to both lesbian and heterosexual women. Bisexual women had significantly higher lifetime prevalence of rape, physical violence, and/or stalking by an intimate partner when compared to both lesbian and heterosexual women. Lesbian women and gay men reported levels of intimate partner violence and sexual violence equal to or higher than those of heterosexuals. Sexual Violence by any Perpetrator The lifetime prevalence of rape by any perpetrator was: For women: - Lesbian 13.1% - Bisexual 46.1% - Heterosexual 17.4% For men: - Gay numbers too small to estimate - Bisexual numbers too small to estimate - Heterosexual 0.7% The lifetime prevalence of sexual violence other than rape (including being made to penetrate, sexual coercion, unwanted sexual contact, and non-contact unwanted sexual experiences) by any perpetrator was: For women: - Lesbian 46.4% - Bisexual 74.9% - Heterosexual 43.3% For men: - Gay 40.2% - Bisexual 47.4% - Heterosexual 20.8% Sex of Perpetrator among Rape Victims Most bisexual and heterosexual women (98.3% and 99.1%, respectively) who experienced rape in their lifetime reported having only male perpetrators. Estimates for sex of perpetrator of rape for other groups (lesbian women, gay and bisexual men) were based upon numbers too small to calculate a reliable estimate and, therefore, are not reportable. Sex of Perpetrator among Victims of Sexual Violence Other than Rape The majority of lesbian, bisexual, and heterosexual women (85.2%, 87.5%, and 94.7%, respectively) who experienced sexual violence other than rape in their lifetime reported having only male perpetrators. 78.6% of gay men and 65.8% of bisexual men who experienced sexual violence other than rape in their lifetime reported having only male perpetrators. 28.6% of heterosexual men who experienced sexual violence other than rape in their lifetime reported having only male perpetrators,

8 2 The National Intimate Partner and Sexual Violence Survey 2010 Findings on Victimization by Sexual Orientation while 54.8% reported only female perpetrators, and 16.6% reported both male and female perpetrators. Stalking Victimization by any Perpetrator 1 in 3 bisexual women (36.6%) and 1 in 6 heterosexual women (15.5%) have experienced stalking victimization at some point during their lifetime. Estimates of stalking for other groups (lesbian women, gay and bisexual men) were based upon numbers too small to calculate a reliable estimate and, therefore, are not reported. Estimates of sex of perpetrator of stalking for lesbian and bisexual women and gay and bisexual men were based upon numbers too small to calculate a reliable estimate and, therefore, are not reported. Violence by an Intimate Partner The lifetime prevalence of rape, physical violence, and/or stalking by an intimate partner was: For women: - Lesbian 43.8% - Bisexual 61.1% - Heterosexual 35.0% For men: - Gay 26.0% - Bisexual 37.3% - Heterosexual 29.0% The lifetime prevalence of severe physical violence by an intimate partner (e.g., hit with fist or something hard, slammed against something, or beaten) was: For women: - Lesbian 29.4% - Bisexual 49.3% - Heterosexual 23.6% For men: - Gay 16.4% - Bisexual numbers too small to report - Heterosexual 13.9% Sex of Perpetrator of Intimate Partner Violence Most bisexual and heterosexual women (89.5% and 98.7%, respectively) reported having only male perpetrators of intimate partner violence. Two-thirds of lesbian women (67.4%) reported having only female perpetrators of intimate partner violence. The majority of bisexual men (78.5%) and most heterosexual men (99.5%) reported having only female perpetrators of intimate partner violence. Most gay men (90.7%) reported having only male perpetrators of intimate partner violence. Impact of Intimate Partner Violence More than half of bisexual women (57.4%), a third of lesbian women (33.5%), and more than a fourth of heterosexual women (28.2%) who experienced rape, physical violence, and/or stalking by an intimate partner in their lifetime reported at least one negative impact (e.g., missed at least one day of school or work, were fearful, were concerned for their safety, experienced at least one post-traumatic stress disorder symptom). Estimates of negative impact of intimate partner violence for gay and bisexual men were based upon numbers too small to calculate a reliable estimate and, therefore, are not reported. This report highlights the lifetime prevalence of intimate partner violence, sexual violence, and stalking victimization for U.S. women and men by self-reported sexual orientation. Individuals who self-identified as lesbian, gay, and bisexual reported rates of violence that were equal to or higher than those reported by self-identified heterosexuals. The goal of public health is to prevent violence from occurring in the first place. A comprehensive violence prevention plan that includes LGB individuals will assist in furthering a comprehensive understanding of intimate partner violence, sexual violence, and stalking.

11 The National Intimate Partner and Sexual Violence Survey 2010 Findings on Victimization by Sexual Orientation 5 background and Methods Little is known about the national prevalence of intimate partner violence (IPV), sexual violence, and stalking among lesbian, gay, and bisexual women and men in the United States. Smaller-scale studies have examined these types of violence among individuals who identify as lesbian, gay, or bisexual, but the use of non-representative samples has produced inconsistent findings in terms of victimization rates among each group (Balsam, 2001; Burke et al., 2002; National Coalition of Anti-Violence Programs, 2002). Information at a national level on experiences of intimate partner violence, sexual violence, and stalking victimization among U.S. adults by sexual orientation has not been available previously. However, data from seven states and six cities participating in Centers for Disease Control and Prevention's Youth Risk Behavior Surveillance System from was used to assess violence-related health risk behaviors among youth, and indicated a higher prevalence of dating violence and unwanted forced sexual intercourse among lesbian, gay, and bisexual youth than heterosexual youth (Kann et al., 2011). National-level data on the prevalence of intimate partner violence, sexual violence, and stalking by sexual orientation are important for understanding and addressing disparities in these forms of violence. Furthermore, a better understanding of differences in the characteristics of these forms of violence, such as age at first victimization and number of perpetrators as well as the impacts on victims, can inform targeted prevention strategies and raise awareness about service needs. What Is NISVS? The National Intimate Partner and Sexual Violence Survey (NISVS) is an ongoing, nationally representative survey that assesses experiences of intimate partner violence, sexual violence, and stalking victimization among adult women and men in the United States. It measures lifetime victimization for these types of violence as well as victimization in the 12 months prior to taking the survey. The survey is focused exclusively on violence and collects information about: Sexual violence by any perpetrator including information related to rape, being made to penetrate someone else, sexual coercion, unwanted sexual contact, and non-contact unwanted sexual experiences Stalking, including the use of newer technologies such as text messages, s, monitoring devices (e.g., cameras and or global positioning system devices), by perpetrators known and unknown to the victim Physical violence by an intimate partner Psychological aggression by an intimate partner including information on expressive forms of aggression and coercive control Control of reproductive or sexual health by an intimate partner In addition to collecting lifetime and 12-month prevalence data on intimate partner violence, sexual violence, and stalking, the survey collects information on the age at the time of the first victimization, demographic characteristics of respondents, demographic characteristics of perpetrators (e.g., age, sex), and detailed information about the patterns and impact of the violence by specific perpetrators.

12 6 The National Intimate Partner and Sexual Violence Survey 2010 Findings on Victimization by Sexual Orientation What Does This Report Include? This report summarizes findings on the lifetime prevalence of sexual violence and stalking victimization by any perpetrator as well as intimate partner violence victimization stratified by sex and self-reported sexual orientation. In addition, this report highlights some characteristics of these victimization experiences including the number and sex of perpetrators and reported impact of violence by an intimate partner. Respondents who reported that the perpetrator was a current or former intimate partner at the time the perpetrator first committed any violence against them are considered victims of intimate partner violence. Respondents were not asked whether their victimization experience was associated with their sexual orientation or sex of the perpetrator. Although 12-month prevalence of these types of violence was collected in NISVS, the sample size was too small to permit reporting reliable estimates by self-reported sexual orientation. As a result, data are summarized based on lifetime prevalence of violence victimization by self-reported sexual orientation. The report first presents data on victimization by any perpetrator specifically rape, other sexual violence, and stalking and then presents data on victimization by an intimate partner, including rape, other sexual violence, stalking, physical violence, and psychological aggression by an intimate partner. Methods The National Intimate Partner and Sexual Violence Survey is a national random digit-dial telephone survey of non-institutionalized English- and/ or Spanish-speaking U.S. population aged 18 or older. NISVS uses a dual-frame sampling strategy that includes both landlines and cell phones. The survey was conducted in 50 states and the District of Columbia and was administered from January 22, 2010 through December 31, In 2010, a total of 18,049 interviews were conducted (9,970 women and 8,079 men) in the U.S. general population. This includes 16,507 completed and 1,542 partially completed interviews. A total of 9,086 females and 7,421 males completed the survey. Approximately 45.2% of interviews were conducted by landline telephone and 54.8% of interviews were conducted using a respondent s cell phone. The sexual orientation of the sample included 96.5% females identified as heterosexual, 2.2% bisexual, and 1.3% lesbian. For males, 96.8% identified as heterosexual, 1.2% bisexual, and 2.0% gay. How NISVS Measured Sexual Orientation 1 Sexual orientation was measured using the following question: Do you consider yourself to be heterosexual or straight, gay or lesbian, or bisexual? The cooperation rate reflects the proportion who agreed to participate in the interview among those who were contacted and determined to be eligible. The cooperation rate obtained for the 2010 NISVS data collection suggests that, once contact was made and eligibility determined, the majority of respondents chose to participate in the interview. The NISVS questionnaire includes behaviorally specific questions that assess sexual violence, stalking, and intimate partner violence over the lifetime and during the 12 months prior to the interview. Intimate partner violence-related questions assess psychological aggression, including expressive aggression (5 items) and coercive control (12 items); control of reproductive or sexual health (2 items); physical violence (11 items); sexual violence (21 items); and stalking (7 items). The overall weighted response rate for the 2010 NISVS ranged from 27.5% to 33.6%. This range reflects differences in how the proportion of the unknowns that are eligible is estimated. The weighted cooperation rate was 81.3%. A primary difference between response and cooperation rates is that telephone numbers where contact has not been made are still part of the denominator in calculating a response rate. 1 During the first and second quarters of data collection, respondents were only asked about sexual orientation if they reported engaging in any same-sex sexual activity. This skip pattern was changed in the third and fourth quarters so that, regardless of sexual activity, all respondents were asked about sexual orientation. Analysis of data collected after the change in the skip pattern revealed minimal impact with respect to the misclassification of respondents in the first and second quarters. Among men who reported only having sex with women (n=3,440), 11 selfidentified as bisexual, and 1 self-identified as gay. Among women who reported only having sex with men (n=4106), 14 self-identified as bisexual and none self-identified as lesbian. Additional information about response and cooperation rates and other methodological details of NISVS can be found in the technical note in Appendix B in The National Intimate Partner and Sexual Violence Survey (NISVS): 2010 Summary Report (Black et al., 2011).

13 The National Intimate Partner and Sexual Violence Survey 2010 Findings on Victimization by Sexual Orientation 7 Lifetime prevalence estimates were calculated for the different forms of violence presented in this report. To be included in the prevalence estimate for sexual violence, physical violence, or psychological aggression, the respondent must have experienced at least one behavior within the relevant violence domain during the time frame of reference (i.e., lifetime). Respondents could have experienced each type of violence more than once, so prevalence estimates should be interpreted as the percentage of the population who experienced each type of violence at least once. To be included in the prevalence of stalking, a respondent must have experienced more than one of the seven stalking tactics that were measured in the survey, or experienced a single tactic multiple times by the same perpetrator, and must have been very fearful or believed that they or someone close to them would be harmed or killed as a result of the perpetrator s behavior. Within categories of violence (e.g., rape, other sexual violence, any severe physical violence, any reported IPV-related impact), respondents who reported more than one subcategory of violence are included only once in the summary estimate but are included in each relevant subcategory. For example, victims of completed forced penetration and alcohol or drug facilitated penetration are included in each of these subtypes of rape but counted only once in the estimate of rape prevalence. The denominators in prevalence calculations include persons who answered a question or responded with don t know or refused. Missing data (cases where all questions for constructing an outcome of interest were not fully administered) were excluded from analyses. All analyses were conducted using SUDAAN statistical software for analyzing data collected through complex sample design. The estimated number of victims affected by a particular form of violence is based on U.S. population estimates from the census projections by state, sex, age, and race/ethnicity (http://www.census. gov/popest/data/index.html). Statistical inference for prevalence and population estimates were made based on weighted analyses, where complex sample design features, such as stratified sampling, weighting for unequal sample selection probabilities and non-response adjustments, were taken into account. The estimates presented in this report are based on complete interviews. An interview is defined as complete if the respondent completed the screening, demographic, general health questions, and all questions on all five sets of violence victimization, as applicable. Analyses were conducted by sex. As prevalence and population estimates were based on a sample population, there is a degree of uncertainty associated with these estimates. The smaller the sample upon which an estimate is based, the less precise the estimate becomes and the more diffcult it is to distinguish the findings from what could have occurred by chance. The relative standard error (RSE) is a measure of an estimate s reliability. The RSE was calculated for all estimates in this report. If the RSE was greater than 30%, the estimate was deemed unreliable and was not reported. Consideration also was given to the case count. If the estimate was based on a numerator < 20, the estimate is also not reported. Tables where specific estimates are missing due to high RSEs or small case counts are presented in full with missing unreliable estimates noted by an asterisk so that the reader can clearly see what was assessed and where data gaps remain. Statistical significance testing was conducted comparing the prevalence of two sexual orientation groups only when both prevalence estimates met the reliability criteria. A two-tailed t-test (alpha =.05) was conducted to assess the difference in prevalence between two groups. A statistically significant difference in prevalence was established between two estimates when p <.05. Statistically significant differences in prevalence between two groups are noted in the tables by the initial letters of the two groups. Additional information about the sampling strategy, weighting procedures, and other methodological details of NISVS can be found in The National Intimate Partner and Sexual Violence Survey (NISVS): 2010 Summary Report (Black et al., 2011).

15 The National Intimate Partner and Sexual Violence Survey 2010 Findings on Victimization by Sexual Orientation 9 Sexual Violence Victimization How NISVS Measured Sexual Violence Five types of sexual violence were measured in NISVS. These include acts of rape (forced penetration), and types of sexual violence other than rape. Rape is defined as any completed or attempted unwanted vaginal (for women), oral, or anal penetration through the use of physical force (such as being pinned or held down, or by the use of violence) or threats to physically harm, and includes times when the victim was drunk, high, drugged, or passed out and unable to consent. Rape is separated into three types, completed forced penetration, attempted forced penetration, and completed alcohol or drug facilitated penetration. - Among women, rape includes vaginal, oral, or anal penetration by a male using his penis. It also includes vaginal or anal penetration by a male or female using their fingers or an object. - Among men, rape includes oral or anal penetration by a male using his penis. It also includes anal penetration by a male or female using their fingers or an object. Being made to penetrate someone else includes times when the victim was made to, or there was an attempt to make them, sexually penetrate someone without the victim s consent because the victim was physically forced (such as being pinned or held down, or by the use of violence) or threatened with physical harm, or when the victim was drunk, high, drugged, or passed out and unable to consent. - Among women, this behavior reflects a female being made to orally penetrate another female s vagina or anus. - Among men, being made to penetrate someone else could have occurred in multiple ways: being made to vaginally penetrate a female using one s own penis; orally penetrating a female s vagina or anus; anally penetrating a male or female; or being made to receive oral sex from a male or female. It also includes female perpetrators attempting to force male victims to penetrate them, though it did not happen. Sexual coercion is defined as unwanted sexual penetration that occurs after a person is pressured in a nonphysical way. In NISVS, sexual coercion refers to unwanted vaginal, oral, or anal sex after being pressured in ways that included being worn down by someone who repeatedly asked for sex or showed they were unhappy; feeling pressured by being lied to, being told promises that were untrue, having someone threaten to end a relationship or spread rumors; and sexual pressure due to someone using their influence or authority. Unwanted sexual contact is defined as unwanted sexual experiences involving touch but not sexual penetration, such as being kissed in a sexual way, or having sexual body parts fondled or grabbed. Non-contact unwanted sexual experiences are those unwanted experiences that do not involve any touching or penetration, including someone exposing their sexual body parts, flashing, or masturbating in front of the victim, someone making a victim show his or her body parts, someone making a victim look at or participate in sexual photos or movies, or someone harassing the victim in a public place in a way that made the victim feel unsafe. Black et al. (2011). The National Intimate Partner and Sexual Violence Survey (NISVS): 2010 Summary Report. National Center for Injury Prevention and Control, Centers for Disease Control and Prevention. This section summarizes lifetime attempted forced penetration, experiences. This section also experiences of sexual violence alcohol or drug facilitated includes particular characteristics victimization of women and penetration), being made to of victimization such as the men in the United States by penetrate someone else, sexual number and sex of perpetrators self-reported sexual orientation, coercion, unwanted sexual contact, as well as the age at first completed including rape (forced penetration, and non-contact unwanted sexual rape victimization.

17 The National Intimate Partner and Sexual Violence Survey 2010 Findings on Victimization by Sexual Orientation 11 Nearly half of lesbian and heterosexual women (46.4% and 43.3%, respectively) and three-quarters of bisexual women (74.9%) reported experiencing sexual violence other than rape in their lifetime. Approximately, one-third of lesbian women (32.3%), more than half of bisexual women (58.0%), and one-quarter of heterosexual women (25.9%) experienced unwanted sexual contact, while 37.8% of lesbian, 62.9% of bisexual, and 32.4% of heterosexual women reported non-contact unwanted sexual experiences. The differences in reported lifetime prevalence of sexual violence other than rape, unwanted sexual contact, and non-contact unwanted sexual experiences between bisexual women and heterosexual women and between bisexual women and lesbian women were statistically significant. Differences between heterosexual women and lesbian women were not statistically significant. Prevalence among Men Approximately 4 out of 10 gay men (40.2%), half of bisexual men (47.4%), and 1 in 5 heterosexual men (20.8%) in the United States have experienced sexual violence other than rape at some point in their lives (Table 2). This translates into nearly 1.1 million gay men, 903,000 bisexual men, and 21.6 million heterosexual men. The differences in reported lifetime prevalence of sexual violence other than rape between gay men and heterosexual men and between bisexual men and heterosexual men were statistically significant. Estimates of rape for gay and bisexual men were based upon numbers too small to calculate a reliable estimate and, therefore, are not reported. Table 2 lifetime Prevalence of Sexual Violence by any Perpetrator by Sexual Orientation U.S. Men, NISVS 2010 Gay Bisexual Heterosexual Weighted % Estimated Weighted % Estimated Weighted % Estimated Rape * * * * ,000 Completed forced penetration * * * * ,000 Attempted forced penetration * * * * ,000 Completed alcohol/drug facilitated penetration * * * * * * Other Sexual Violence HB, HG ,096, , ,664,000 Made to penetrate * * * * 4.3 4,478,000 Sexual coercion 2 * * * * 5.5 5,787,000 Unwanted sexual contact 3,HG , , ,289,000 Non-contact unwanted sexual experiences 4,HB, HG , , ,153,000 1 Rounded to the nearest thousand. 2 Pressured in a non-physical way (includes, for example, threatening to end the relationship, using influence or authority). 3 Includes unwanted kissing in a sexual way, fondling or grabbing sexual body parts. 4 Includes, for example, exposing sexual body parts, being made to look at or participate in sexual photos or movies, harassed in a public place in a way that felt unsafe. * Estimate is not reported; relative standard error > 30% or cell size 20. HB Statistically significant differences (p.05) of the prevalence between heterosexual and bisexual groups. HG Statistically significant differences (p.05) of the prevalence between heterosexual and gay groups.

18 12 The National Intimate Partner and Sexual Violence Survey 2010 Findings on Victimization by Sexual Orientation Approximately 1 in 3 gay men (32.3%), 1 in 5 bisexual men (21.1%), and 1 in 10 heterosexual men (10.8%) reported experiencing unwanted sexual contact during their lifetime. The differences in reported lifetime prevalence of unwanted sexual contact between gay men and heterosexual men were statistically significant. However, the differences between bisexual men and heterosexual men and bisexual men and gay men were not statistically significant. In addition, 30.5% of gay men, 28.9% of bisexual men, and 11.7% of heterosexual men reported non-contact unwanted sexual experiences. Differences in reported lifetime prevalence of non-contact unwanted sexual experiences between gay men and heterosexual men and between bisexual men and heterosexual men were statistically significant. Figure 1 Lifetime of Perpetrators of Sexual Violence Other than Rape among Female Victims of Sexual Violence by Sexual Orientation NISVS 2010 Lesbian Bisexual Heterosexual 47.0% 32.3% HB 31.3% 38.6% 36.4% 30.0% 23.1% * * of Perpetrators *Estimate is not reported; relative standard error > 30% or cell size 20. HB Statistically significant differences (p.05) of the prevalence between heterosexual and bisexual groups. of Perpetrators in lifetime Reports of Sexual Violence Victimization by Sexual Orientation of Perpetrators among Female Victims Among victims of rape, most bisexual and heterosexual women reported having only one perpetrator in their lifetime (62.3% and 72.3%, respectively) (data not shown). Among victims of sexual violence other than rape, approximately one-third of bisexual women (32.3%) and one-half of heterosexual women (47.0%) reported having one perpetrator (Figure 1). Approximately one-third of lesbian women (38.6%), bisexual women (36.4%), and heterosexual women (30.0%) reported three or more perpetrators of sexual violence other than rape. The differences between bisexual women and heterosexual women in having one perpetrator of sexual violence other than rape were statistically significant. All other differences were not statistically significant. of Perpetrators among Male Victims Approximately 4 out of 10 gay men (42.3%) and 1 in 2 heterosexual men (49.7%) who reported experiencing sexual violence other than rape reported having one perpetrator (data not shown). One-third of gay men (33.0%) and more than one-quarter of heterosexual men (27.0%) reported having three or more perpetrators in their lifetime. The difference between the number of perpetrators for gay men and heterosexual men were not statistically significant. For each subgroup of men, the numbers were too small to produce a reliable estimate for the number of perpetrators for rape. In addition, Nearly half of bisexual men, 4 out of 10 gay men, and 1 in 5 heterosexual men in the U.S. have experienced sexual violence other than rape in their lifetime.

19 The National Intimate Partner and Sexual Violence Survey 2010 Findings on Victimization by Sexual Orientation 13 for similar reasons, estimates of the number of perpetrators of sexual violence other than rape for bisexual men are not reported. Sex of Perpetrator in lifetime Reports of Sexual Violence Victimization by Sexual Orientation Sex of Perpetrators among Female Victims Most bisexual and heterosexual women in the United States who experienced rape reported having only male perpetrators specifically, this includes 98.3% of bisexual women, and 99.1% of heterosexual women who reported being a victim of rape in their lifetime. Similarly, Figure % of lesbian women, 87.5% of bisexual women, and 94.7% of heterosexual women who reported experiencing sexual violence other than rape in their lifetime also reported having only male perpetrators (data not shown). Estimates for the sex of perpetrator of rape for lesbian women were based on numbers too small to calculate a reliable estimate and, therefore, are not reported. Statistical tests comparing the sex of the perpetrator across sexual orientation for female victims of sexual violence was not conducted due to small sample sizes. Sex of Perpetrators among Male Victims More than three-quarters of gay men (78.6%) and about two-thirds of bisexual men (65.8%) who experienced sexual violence other Age at Time of First Completed Rape Victimization among Female Victims by Sexual Orientation NISVS ,2 Bisexual 48.2% HB Heterosexual 38.3% 33.1% 28.3% 11.8% 12.0% 5.0% * * * * 10 & Under Age at First Completed Rape Victimization 1 The reported age is the youngest age reported across all perpetrators. 2 All percentages are weighted to U.S. population. * Estimate is not reported; relative standard error > 30% or cell size 20. HB Statistically significant differences (p.05) of the prevalence between heterosexual and bisexual groups. 2.0% than rape identified male perpetrators (data not shown). However, of heterosexual men who reported sexual violence other than rape, 28.6% reported only male perpetrators, more than one-half (54.8%) reported only female perpetrators, and 16.6% reported having both male and female perpetrators. Estimates for the sex of perpetrators of rape for gay and bisexual men were based upon numbers too small to calculate a reliable estimate and therefore are not reported. Statistical tests comparing the sex of the perpetrator across sexual orientation for male victims of sexual violence was not conducted due to small sample sizes. age at Time of First Completed Rape Victimization by Sexual Orientation age at Time of First Completed Rape Victimization among Women More than three-quarters of both bisexual and heterosexual women who were victims of completed rape (91.0% and 78.5%, respectively) were raped before 25 years of age. Nearly half of bisexual women (48.2%) and more than one-quarter of heterosexual women (28.3%) experienced their first completed rape between the ages of 11 and 17 years (Figure 2). The differences between bisexual women and heterosexual women in the age range were statistically significant. Estimates for age at time of first completed rape for lesbian women and for gay and bisexual men were based upon numbers too small to calculate a reliable estimate and, therefore, are not reported.

21 The National Intimate Partner and Sexual Violence Survey 2010 Findings on Victimization by Sexual Orientation 15 Stalking Victimization How NISVS Measured Stalking Stalking victimization involves a pattern of harassing or threatening tactics used by a perpetrator that is both unwanted and causes fear or safety concerns in the victim. For the purposes of this report, a person was considered a stalking victim if they experienced multiple stalking tactics or a single stalking tactic multiple times by the same perpetrator and felt very fearful, or believed that they or someone close to them would be harmed or killed as a result of the perpetrator s behavior. Stalking tactics measured: Unwanted phone calls, voice or text messages, hang-ups Unwanted s, instant messages, messages through social media Unwanted cards, letters, flowers, or presents Watching or following from a distance, spying with a listening device, camera, or global positioning system (GPS) Approaching or showing up in places, such as the victim s home, workplace, or school, when it was unwanted Leaving strange or potentially threatening items for the victim to find Sneaking into victims home or car and doing things to scare the victim or let the victim know the perpetrator had been there Black et al. (2011). The National Intimate Partner and Sexual Violence Survey (NISVS): 2010 Summary Report. National Center for Injury Prevention and Control, Centers for Disease Control and Prevention. lifetime Prevalence of Stalking Victimization by any Perpetrator by Sexual Orientation Approximately 1 in 3 bisexual women (36.6%) and 1 in 6 heterosexual women (15.5%) in the United States has experienced some type of stalking behavior in their lifetime in which they felt very fearful or believed that they or someone close to them would be harmed or killed (data not shown). This translates into 1.2 million bisexual women and 16.8 million heterosexual women. The differences in lifetime prevalence of stalking between bisexual and heterosexual women were statistically significant. Estimates of stalking for lesbian women and gay and bisexual men were based upon numbers too small to calculate a reliable estimate and, therefore, are not reported. Approximately 1 in 3 bisexual women and 1 in 6 heterosexual women experienced stalking in their lifetime.

23 The National Intimate Partner and Sexual Violence Survey 2010 Findings on Victimization by Sexual Orientation 17 Violence by an Intimate Partner How NISVS Measured Intimate Partner Violence Five types of intimate partner violence were measured in NISVS. These include sexual violence, stalking, physical violence, psychological aggression, and control of reproductive/sexual health. Sexual violence includes rape, being made to penetrate someone else, sexual coercion, unwanted sexual contact, and non-contact unwanted sexual experiences. Stalking victimization involves a pattern of harassing or threatening tactics used by a perpetrator that is both unwanted and causes fear or safety concerns in the victim. Physical violence includes a range of behaviors from slapping, pushing, or shoving to severe acts such as being beaten, burned, or choked. Psychological aggression includes expressive aggression (such as name calling, insulting, or humiliating an intimate partner), and coercive control, which includes behaviors that are intended to monitor and control or threaten an intimate partner. Control of reproductive or sexual health focuses on interference with birth control. This includes the refusal by an intimate partner to use a condom. For a woman, it also includes times when a partner tried to get her pregnant when she did not want to become pregnant. For a man, it also includes times when a partner tried to get pregnant when the man did not want her to become pregnant. Black et al. (2011). The National Intimate Partner and Sexual Violence Survey (NISVS): 2010 Summary Report. National Center for Injury Prevention and Control, Centers for Disease Control and Prevention. Intimate partner violence (IPV) experiences of intimate partner more detailed data on sexual includes physical violence, sexual violence among women and violence, stalking, physical violence, threats of physical men in the United States by violence, psychological aggression or sexual violence, stalking, self-reported sexual orientation. (expressive aggression and and psychological aggression Included in this section are coercive control), and control of (including coercive tactics) by estimates for a composite measure reproductive or sexual health a current or former intimate of intimate partner violence that by an intimate partner. This section partner. Intimate partner violence combines only rape, physical also includes information on the may occur among cohabitating violence, and/or stalking by an characteristics of victimization or non-cohabitating romantic intimate partner as a conservative experiences including the number or sexual partners and among measure of the overall prevalence and sex of perpetrators as well as opposite or same sex couples. of intimate partner violence. In age at the time of first intimate This section summarizes lifetime addition, this section includes partner violence victimization.

24 18 The National Intimate Partner and Sexual Violence Survey 2010 Findings on Victimization by Sexual Orientation lifetime Prevalence of Rape, Physical Violence, and/or Stalking Victimization by an Intimate Partner by Sexual Orientation Prevalence among Women Four in 10 lesbian women (43.8%), 6 in 10 bisexual women (61.1%), and 1 in 3 heterosexual women (35.0%) reported experiencing rape, physical violence, and/or stalking within the context of an intimate partner relationship at least once during their lifetime (Table 3). This translates to an estimated 714,000 lesbian women, 2 million bisexual women, and 38.3 million heterosexual women in the United States. Bisexual women experienced significantly higher prevalence of these types of violence compared to lesbian and heterosexual women. There were no statistically significant differences between the prevalence of rape, physical violence, and/or stalking when comparing lesbian women and heterosexual women. IPV-related impact is explored in more detail later in this document. Bisexual women experienced significantly higher lifetime prevalence of rape, physical violence, and/or stalking by an intimate partner when compared to lesbian and heterosexual women. Table 3 lifetime Prevalence of Rape, Physical Violence, and/or Stalking Victimization by an Intimate Partner by Sexual Orientation U.S. Women, NISVS 2010 Lesbian Bisexual Heterosexual Weighted % Estimated Weighted % Estimated Weighted % Estimated Rape HB * * , ,984,000 Physical violence HB, BL , ,886, ,291,000 Stalking HB * * ,030, ,126,000 Rape, physical violence, , ,024, ,290,000 HB, BL and/or stalking With IPV-related impact 2,3,4,HB, BL , ,901, ,828,000 1 Rounded to the nearest thousand. 2 Includes experiencing any of the following: being fearful, concerned for safety, any PTSD symptoms, need for health care, injury, contacting a crisis hotline, need for housing services, need for victim s advocate services, need for legal services, missed at least one day of work or school. For those who reported being raped, it also includes having contracted a sexually transmitted disease or having become pregnant. 3 IPV-related impact questions were assessed in relation to specific perpetrators, without regard to the time period in which they occurred, and asked in relation to any form of intimate partner violence experienced (sexual violence, physical violence, stalking, expressive aggression, coercive control, and reproductive control) in that relationship; 12-month prevalence of IPV-related impact was not assessed. 4 By definition, all stalking incidents result in impact because the definition of stalking includes the impacts of fear and concern for safety. * Estimate is not reported; relative standard error > 30% or cell size 20. HB Statistically significant differences (p.05) of the prevalence between heterosexual and bisexual groups. BL Statistically significant differences (p.05) of the prevalence between bisexual and lesbian groups.

25 The National Intimate Partner and Sexual Violence Survey 2010 Findings on Victimization by Sexual Orientation 19 Prevalence among Men Approximately 1 in 4 gay men (26.0%), 4 in 10 bisexual men (37.3%), and more than 1 in 4 heterosexual men (29.0%) reported experiencing rape, physical violence, and/or stalking by an intimate partner during their lifetime (Table 4). This equates to 708,000 gay men, 711,000 bisexual men, and over 30 million heterosexual men in the United States. The differences between these groups of men were not statistically significant. The numbers of men who reported rape by an intimate partner among gay, bisexual, and heterosexual men in the United States are too small to report. In addition, the number of men who reported stalking by an intimate partner among gay and bisexual men were too small to report. Table 4 lifetime Prevalence of Rape, Physical Violence, and/or Stalking Victimization by an Intimate Partner by Sexual Orientation U.S. Men, NISVS 2010 Gay Bisexual Heterosexual Weighted % Estimated Weighted % Estimated Weighted % Estimated Rape * * * * * * Physical violence , , ,926,000 Stalking * * * * 2.1 2,222,000 Rape, physical violence, , , ,250,000 and/or stalking With IPV-related impact 2,3, ,000 * * ,583,000 1 Rounded to the nearest thousand. 2 Includes experiencing any of the following: being fearful, concerned for safety, any PTSD symptoms, need for health care, injury, contacting a crisis hotline, need for housing services, need for victim s advocate services, need for legal services, missed at least one day of work or school. For those who reported being raped, it also includes having contracted a sexually transmitted disease. 3 IPV-related impact questions were assessed in relation to specific perpetrators, without regard to the time period in which they occurred, and asked in relation to any form of intimate partner violence experienced (sexual violence, physical violence, stalking, expressive aggression, coercive control, and reproductive control) in that relationship; 12-month prevalence of IPV-related impact was not assessed. 4 By definition, all stalking incidents result in impact because the definition of stalking includes the impacts of fear and concern for safety. * Estimate is not reported; relative standard error > 30% or cell size 20.

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